Finding the Fourth Proportional to 80,984,077.20, 121,476,115.80 and 35,545,871.70
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Solution
The fourth proportional to 80,984,077.20, 121,476,115.80 and 35,545,871.70 is: 53,318,807.55
Step by Step Solution
- Step 1: Write the proportion equation
80,984,077.20 : 121,476,115.80 = 35,545,871.70 : x - Step 2: Convert to fraction form
80,984,077.20/121,476,115.80 = 35,545,871.70/x - Step 3: Cross multiply
80,984,077.20x = 121,476,115.80 × 35,545,871.70 - Step 4: Simplify right side
80,984,077.20x = 4,317,974,426,841,143 - Step 5: Solve for x
x = 4,317,974,426,841,143/80,984,077.20 - Step 6: Final answer
x = 53,318,807.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.